Amen.
As a "hacker", I think a lot, all of the time.
So I cook to think about something else. Washing the dishes without dishwasher is also a moment where I let my mind wander.
Definitely not some time lost (to be honest I don't enjoy washing the dishes as much as cooking, of course, but I feel that connecting my brain on something "easy" is rahter good for me, else I'd jump on my computer right after eating...)
stf